
public interface IBeatModel {
	public void initialize();
	public void on();
	public void off();
	public void setBPM(int bpm);
	public int getBPM();
	public void registerObserver(IBeatObserver o);
	public void removeObserver(IBeatObserver o);
	public void registerObserver(IBPMObserver o);
	public void removeObserver(IBPMObserver o);
}
